.f-block-empty-button {
    padding: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.f-block-modal-body {
    display: flex;
    height: calc(80vh - 3rem);
    overflow: hidden;
}

.f-block-modal-close-button {
    position: absolute;
    top: 1rem;
    right: 2rem;
}

.f-block-modal-sidebar {
    padding: 24px;
    overflow: auto;
    width: 260px;
    flex-shrink: 0;
    cursor: pointer;
    border-right: 1px solid #E5E7EB;
}

.f-block-modal-sidebar-title {
    font-size: 1.5rem; /* text-2xl */
    font-weight: bold;
    color: #1F2937; /* text-gray-900 */
    padding-bottom: 1rem; /* pb-4 */
}

.f-block-modal-sidebar-item {
    padding: 0.625rem 0.75rem; /* py-2.5 px-3 */
    border-bottom: 1px solid #D1D5DB; /* border-gray-300 */
    white-space: nowrap;
}

.f-block-modal-sidebar-item-active {
    background-color: #F9FAFB; /* bg-gray-50 */
    font-weight: bold;
}

.f-block-modal-previews {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    gap: 16px;
    overflow: auto;
    padding: 1rem;
    padding-top: 4rem;
}

.f-block-modal-preview {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: calc(50% - 8px);
}

.f-block-modal-preview-item {
    position: relative;
    cursor: pointer;
}

.f-block-modal-preview-title {
    padding: 8px 0;
}

.f-block-modal-preview-content {
    zoom: calc(100% / 3);
    overflow: hidden;
    user-select: none;
    pointer-events: none;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid #dbdbdb;
}

.f-block-modal-preview-item:hover .f-block-modal-preview-content {
    border-color: var(--f-primary);
}

[data-bs-theme="dark"] .f-block-modal-sidebar {
    border-right: 1px solid var(--f-gray-600);
}

[data-bs-theme="dark"] .f-block-modal-sidebar-title {
    color: var(--f-gray-100);
}

[data-bs-theme="dark"] .f-block-modal-sidebar-item {
    border-bottom: 1px solid var(--f-gray-800);
    color: var(--f-gray-100);
}

[data-bs-theme="dark"] .f-block-modal-sidebar-item-active {
    background-color: var(--f-gray-700);
    color: var(--f-white);
}

[data-bs-theme="dark"] .f-block-modal-previews {
    background-color: var(--f-gray-800);
}

[data-bs-theme="dark"] .f-block-modal-preview-content {
    border: 1px solid var(--f-gray-600);
    background-color: var(--f-gray-700);
}

[data-bs-theme="dark"] .f-block-modal-preview-item:hover .f-block-modal-preview-content {
    border-color: var(--f-primary);
}